Hi, What are the expected semantics for the Glance API when uploading an image who's size you do not know? The docs at http://glance.openstack.org/glanceapi.html say "x-image-meta-size: This header is optional. ... When not present, Glance will calculate the image's size based on the size of the request body." I read this as "If x-image-meta-size is missing, then Glance will accept the upload, and then update the metadata to match whatever what was sent". However (with Glance-over-Swift at least) that's not what's happening. What's actually happening is "If x-image-meta-size is missing, then the Content-Length header is read, and if both are missing then the image size is set to 0."
I'm not sure whether I should clarify the docs to say that x-image-meta-size is required if you don't set Content-Length, or whether the Swift backend needs to be updated to record / recover the uploaded image size. Thanks, Ewan.
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